Monitor stand



FIG. 1 is a front, bottom, left side perspective view of a monitor stand;

FIG. 2 is a back, bottom, left side perspective view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevation view thereof; and,

FIG. 8 is a back elevation view thereof.

The broken lines shown in the drawings depict portions of the monitor stand in which the design is embodied that form no part of the claimed design. 

CLAIM The ornamental design for a monitor stand, as shown and described. 